A Container Is Divided into Two Chambers That Are Separated

question 20

Multiple Choice

A container is divided into two chambers that are separated by a valve. The left chamber contains one mole of a monatomic ideal gas. The right chamber is evacuated. At some instant, the valve is opened and the gas rushes freely into the right chamber. Which one of the following statements concerning this process is true?

• A)Work is done by the gas.
• B)The temperature of the gas decreases.
• C)The change in the entropy of the gas is zero.
• D)The walls of the containing vessel must get colder.
• E)The change in the internal energy of the gas is zero.

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Definitions:

Diversity

The range of different species, genetic variations, and ecosystems within and between environments.

Response To Stimuli

The process by which organisms detect and react to changes in their internal and external environment.

Homeostasis

The maintenance of stable internal conditions within an organism despite changes in external conditions.

Dependent Variables

Variables in scientific experimentation that are affected by independent variables, used to measure the outcome of an experiment.